6121479 divided by 343 
Our goal is to divide 6121479 by 343.

Let's proceed to step 1:
343 goes into 6 0 times with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Grab the next digit (1) from the dividend, add it to 6, then carry on: 61 / 343

Going ahead to step 2:
When dividing 61 by 343, we get 0 with a remainder of 61.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 61, we end up with 61.
Fetch the next digit (2) from the dividend, attach it to 61 and continue: 612 / 343

Advancing to step 3:
The number 343 fits into 612 1 times, leaving a remainder of 269.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 343 away from 612, we end up with 269.
Include the next digit (1) from the dividend after 269, then repeat: 2691 / 343

Step 4:
2691 divided by 343 is 7 with a remainder of 290.
Record the quotient 7 as the next digit in the result. 
Result so far: 17.0
Deduct 2401 from 2691 and we're left with 290.
Include the next digit (4) from the dividend after 290, then repeat: 2904 / 343

Going ahead to step 5:
2904 divided by 343 is 8 with a remainder of 160.
Put 8 as the next digit of the answer. 
Result so far: 178.0
Subtracting 2744 from 2904 leaves us with 160.
Bring next digit (7) of the dividend behind the 160 and repeat the process: 1607 / 343

Going ahead to step 6:
343 can be fit into 1607 4 times, resulting in a remainder of 235.
Put 4 as the next digit of the answer. 
Result so far: 1784.0
Deduct 1372 from 1607 and we're left with 235.
Bring next digit (9) of the dividend behind the 235 and repeat the process: 2359 / 343

Advancing to step 7:
2359 divided by 343 is 6 with a remainder of 301.
Write down 6 as next digit of the result. 
Result so far: 17846.0
The remainder is 301 after subtracting 2058 from 2359.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3010, and continue the process.

On to step 8:
The number 343 fits into 3010 8 times, leaving a remainder of 266.
Put 8 as the next digit of the answer. 
Result so far: 17846.8
If we take 2744 away from 3010, we end up with 266.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2660, and continue the process.

Advancing to step 9:
When dividing 2660 by 343, we get 7 with a remainder of 259.
The number 7 becomes the next digit in our result. 
Result so far: 17846.87
Subtracting 2401 from 2660 leaves us with 259.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2590, and continue the process.

Step 10:
343 goes into 2590 7 times with a remainder of 189.
Record the quotient 7 as the next digit in the result. 
Result so far: 17846.877
Deduct 2401 from 2590 and we're left with 189.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1890, and continue the process.

In conclusion, the division gives 17846.877 with a balance of 0.0189.